what octane level would be best for the 2,8? I currently use the 89 is that too much or too little?

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You know you drive an F-Body when you can't remember what the back of a Mustang looks like!

'88 Camaro Sport Coupe V6

 

From what I have heard, your engine is at stock compression so there really isn't any need to run higher octane fuel. 87 octane is just fine and I have had no problems with it.

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1992 Polo Green RS 3.1L K&N conical and working on the ram air....

"Yeah, it's a V6 SO WHAT!?"

 

thankx. nice to know I can save money with as high as what they are where I live...1.49 per gallon for 89 octane (1.39 for 87 octane)

 

If you notice your engine pinging just step up to the next octane level, but there shouldn't be a problem.

I can't belive your complaining about $1.49!!!!! There are times I pay $2.25 for 89 octane!

 

i also have a faulty fuel pump so my engine never gets a constant flow of gas and its hard to tell if it sounds right. How do you tell if its pinging?

 

You'll know if it's knocking/pinging. It makes a nasty, loud popping or knocking sound. Don't confuse this with a rod knock though.



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-Dan
-1990 3.1L RS
-Mods? no
-Slow? yes
-*Slowly* collecting parts for T5 swap

 

$1.49!!!!!!!!!!!!!!!!!!!
it's $1.08-$1.04 here, every body to riverside oh & fill up!

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$150.00 2.8 Auto.
Blown Head Gasket.
turbo has arrived, but put on hold (4 now)
working on dismantling engine, & finding out what parts I need (and Really want)

 

wont water condensation mixed in the gas cause a similar "crackling" sound? couldnt the sound be a signal for bad gass?

 

I'm running 93 in my car.

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Chevy 2.8L 60° V6
Mods:
?K&N Filter Lid
?87 Formula Hood
?Bosch Platinum +4
?Hi-Flo CatCo CAT
?Flowmaster 80 Series Muffler
?83 Trans Am 15x7 Turbo Fin Wheels
?B.F.Goodrich Radial T/A 225/60-15
?Chevy 2.8L Heddman Headers (Going on soon)

Aol instant messenger: FIREAM

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I run 93 in both my cars (1.41 around here), and both my cars appreciate it

 

Stuart, you better replace that soon- before you get stranded!

I went to 93 when I got my ADS Superchip; now that the chip's back in the box in the basement, I'm still running 93. "Why not?" I was thinking of trying a tank of 87 to see if the car feels different.


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-Tom P (Hot rodded 1986 Firebird 2.8l)

 

Well, I'll be damned... I get home, and there's a new copy of Hot Rod waiting for me- with an "Octane shootout". Interesting stuff... you guys should find a copy! They took a Mopar motor, and ran it on 87, 87 w/104+, 91, 91 w/104+, 100, and 115 octane fuels. They even got HP charts out of it!



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-Tom P (Hot rodded 1986 Firebird 2.8l)

 

In these newer cars there is really no need to run more then 93 and even that is abit overkill unless you are running alot of mods. When i ran my firebird modded up it required 89, but even then i could get away with a tank of 87 IF i layed off the NOS. The computers in your cars will adjust and kill any ping. Thats why there there. Now in no computer cars you can run as high as you want to go in octane - try it in your computer cars and you will get al sorts of codes without the mods and computer programing to work with it... Even at my Mavericks 9.0:1 and moderate build with NOS i can run 89, but she likes 93 with the occasional trip to the airport for 100LL. BUT even the V8 doesn't really need it, it doesn't have the compression or mods to warrent it. I have not noticed ANY time difference with 87 to 100LL, altho the car will seem to rev cleaner with 13 gallons of 89 and 3 gallons of 100. Running 50/50 of 93/100 just smells cool - if ya ever have smelt high octane burn - its a diffent smell... Anyways, run 89 to 91 in the little V6 mills and you will have a happy car. Don't bother with higher - the engine won't pick up anything you will notice, believe me i tried it once

David

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1974 Ford Maverick Grabber 302 - 1989 roller block, 1995 ported, polished and matched heads, weiand manifold, holly 600cfm carb, headers, 2.25" exhaust. Former owner of a 1991 3.1L Firebird - long live the firebird.

 

I run 93 because you can't get 91 in MA, and its only .10 more a gallon than 89. 93 is down to 1.39 now. Yipee!!!

Tom, why did you take the ADS out? For emissions? I left my Hypertech in and ran it on the dyno at work for my inspection...passed lower than ever!